Improvement in grain-separators



j. L. LA ROSE.

Improvement in Grain-Separatore,

Patented Oct'.

2 Sheets--Sheet.2

J. L. LA ROSE.

Improvement in GrainSeparatorsy.

Patented Oct. 29,1872.

1;@ .ven/2024 UNITED STATES PATENT JOHN LA ROSE, OF LEAVENWORTH, KANSAS.

IMPROVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Patent No. 132,674, dated October29, 1872.

To all whom it may concern:

Be it known that I, JOHN L. LA ROsE,of Leavenworth, in the county ofLeavenworth and State of Kansas, have invented certain new and usefulImprovements in Wheat-Separators; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon which form a part of this specication.

The nature of my invention consists in the construction and arrangementof a separator for cleaning wheat or other small grain or seed, as willbe hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure l is a side elevation of my entire machine; Fig. 2 is alongitudinal vertical section of the same; Fig. 3 is a section of thebox L and the cylinder J 5 and Fig. 4 is a bottom view of the cylinderJ.

A represents the frame of my separator, having at the top the hopper B,which, on one side, is provided with a slide, a, to regulate the feedingof the wheat to the machine. G is the fan-case, within which is placedand revolves the fan D. The wings or blades of this fan are curved orconcave, as shown in Fig. 2, making a more powerful blast with lesspower than can be obtained with the usualy straight-bladed fans. At themouth of the fan-case O are valves b b, which are pivoted at their frontedges, and their rear edges supported and adjusted by means of hangers dd, so as to direct the full force of the blast to either one of thescreens at a time, or to two screens or part to each, or all the airbelow the screens, for the purpose of governing and properly applyingthe air for cleaning the different kinds of grain. The shaker containingthe screens is made in sections Gr, G1, and G2, hinged together at theback end, each section being grooved for the reception of a screen. Thetop section G rests on side supporters c at the back end, and the frontends of all the sections are secured to a perforated bar, f, which ishinged at its lower end. By means of this perforated bar each or all ofthe screens E E may be raised and lowered at will. The sections of theshaker are hinged together at the back end in step-form from the bottomup, giving more slide to oats and long material on each screen, and lessscreen-surface as it passes down to the lower screen. The top section Gis connected with an eccentric, h, attached `on a shaft, c', whicheccentric, as the shaft revolves, gives the required motion to thescreens. The wheat, after passing through the last screen, falls downinto the bottom hopper H, and from thence passes through a spout, k,into a vertical cylinder or trunk, J, arranged on the outside of theframe A. In the hopper H is an adjustable slide, I, to close the spacebetween the edge of said hopper and the front end of the lower screen atwhatever height said screen may be placed. The lower end of the verticalcylinder J is provided with spiral Winding apertures, on the sidecovered with spiral winding flanges m m., forming the funnel-shapedmouth K, with a funnel-shaped cap, n, as a covering over the end ofthecylinder, said cap having an opening in the center equal in size to thespace where the wheat passes into the cylinder. The spiral anges m mcanse the air to pass into the cylinder as a whirl at or through theside apertures, spirally or winding, to the verge of the cylinder ortrunk, producing a whirlwind. The

opening in the center of the cap fn allows the V wheat to pass out belowwithout obstruction, while the whirling air causes all the light material-such as smut, chaff, &c.-to pass up through the upper end of thecylinder into the side box L, where it drops in an eddy in the lowerpart of the box, and is carried 0E by a spout, M, where, by itspressure, it raises a valve, s, in .the same, so as to drop out. Theside box L is in the shape of a rhomboid, the cylinder J entering itsbottom at its lower end. This box is provided with a screenpartition,'p, dividing the interior into two chambers or sections, so asto retain all the refuse in the lower section ofthe box and let it passout through the body of the machine by means of the spout M, withoutentering the upper section and the horizontal fan D. In the upper partof the box L is a rhomboid-shaped slide-valve, N, to regulate the draftpassing up through the cylinder J.

EEIcE.

e maeva Having thus fully described my invention, what I claim as new,and desire to secure by Letters Patent, is-

1. The cylinder or trunk J, having its lower end provided with spiralwinding apertures on the side covered with spiral windin g dan ges m m,forming the funnel-shaped mouth K, and with the funnel-shaped cap a,covering the end ofthe cylinder, said cap having a central aperture forthe passage ofthe wheat, and the ilanges causing the air to enter thecylinder on a whirl, all as herein set forth.

2. The arrangement, at the mouth of the fan under the hopper, of oneor'more valves b, hinged or pivoted at the front edge, and adjustable atthe rear edge by hangers d, substantially as set forth.

3. A shaker for grain-separators, made in sections, hinged together attheir rear ends in step-form.

two witnesses.

JOHN L. LA ROSE. Witnesses:

J oHN WILLIAMS, C. THoLM.

